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Part AWhat is the H3O+ concentration? Express your answer using two significant figures_Azd[Hzo+] =MSubmitRequest Answer...

Question

Part AWhat is the H3O+ concentration? Express your answer using two significant figures_Azd[Hzo+] =MSubmitRequest Answer

Part A What is the H3O+ concentration? Express your answer using two significant figures_ Azd [Hzo+] = M Submit Request Answer



Answers

Find the concentration of H3O+, to the correct number of significant
figures, in a solution with each pH. Describe how your calculations
show the relationship between the number of digits to
the right of the decimal place in pH and the number of significant
figures in concentration.

Hello question is the hydro knee um Iron concentration of a sino acetic acid solution is europe. 103 To Mueller calculate its spirit. Okay so now we are going to discuss how can we calculate the witch edge plus iron concerned person is given in the question that is 0.0 32 from H plus higher concentration. We cannot calculate ph first we have to calculate ph we know that ph equal to minus log concentration of X plus iron. So what is the concern tradition of explosive that is 0.03 calculating this value. We will get one point four men. Yeah. Bh how can we calculate P O. H. We know that ph plus P O. H. It will do 14. So here we can also written as 14. -4. So 14 minus one point 49. That will comes out 12.5 beat. Which? Okay thank you.

So we want to calculate the acid association Constant four. Former kassid And if we're going to calculate an equilibrium constant, that applies to a chemical reaction. So we want to write thedc ical reaction, and that would be the acid dissociation reaction the formic acid de associates it releases. H. Plus. Now when we're told that it's a 0.1 Moeller solution of formic acid, that really gives us what we call the initial concentration. Basically the recipe, uh, take one month, 1/10 goal of formic acid and deluded up to a volume of one leader. And so it's somewhat artificial to say Well, at some point we have 08 plus and 04 mate I on. But formally, that is the idea of starting before in a reaction occurs. That's what we call it the initial. And then there's going to be some change in the concentrations to get us to equilibrium. Now, when they tell us the age plus concentration, that is the hydro Nia, my on concentration and H plus is just a abbreviation for the hydro Nia, my on Ah, then ah, that is the final equilibrium concentration of the age plus so once we have filled in all the given information, this is what we call an ice table. Uh, then up and down the table it is addition and subtraction. How did we get from zero 2.0 for three? We must have had an increase. The reaction must have produced that 0.43 Now when the acid associates it produces one age plus and one for made eye on. And so the increase in the form eight must be exactly the same. The that's a 1 to 1, uh, and so it must also be 0.43 at equilibrium. Now, everything on the change lines people using are there to indicate the reaction. This is the change in concentration as a consequence of the reaction of curry, and everything on that line must be in proportion to the balanced equation. It's a 1 to 1 on the right, and so it's plus 10.43 for each of them. And for the, uh, acid, 0.43 must have been consumed so that of the original 0.100 Moeller the remaining concentration it would be 57 No, I know. I'm sorry. 09 Now then, the equilibrium constant expression simply comes directly from the balanced equation. The products each raised to the exponents, namely one of its coefficient, each multiplied by the other over the reactant. And then we just plug in the numbers. And so 0.43 squared, divided by 0.957 And we get 1.9 three times 10 to the minus four. And so this is the way that you always want to do these equilibrium calculations. If it's the will Librium constant value that is unknown, then you have to be given enough information to fill all the numbers into the ice table, and you will be able to calculate the numerical value for the equilibrium constant.

For this problem, We're going to be discussing a strong asset. Hi, droning in my own concentration. And pH, this is coming. The strong acid we're going to be discussing is H N 03 and were given a 0.13 molars solution of h N 03 A strong acid means it associates completely to find the pH. We're gonna take the negative log of the hydro Nehemiah concentration. So we're gonna take the negative log of 0.13 Will report this to two decimal places. 2.89 Because we have two significant figures in Are given concentration. There aren't any units there. And I think the head Rony a Mayan concentration, is just the 0.13 bowler. There we go. I think that's it. What am I writing down now? Oh, for a strong acid. The hydro owning my own concentration. Just eat schools. The concentration of


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